Shelf life study of Pseudomonas fluorescens in talc based carrier and liquid formulations

Abstract

Plant growth promoting rhizobacteria (PGPR) was designed to formulate a suitable carrier from available material and evaluate for shelf life by using locally isolated P. fluorescens in soil. Shelf life study of P. fluorescens was talc based carrier material and liquid formulations stored at two different temperature regimes viz., room and refrigerator. P. fluorescens was assessed the initial population and after 6 months of storage. The observations were recorded 48 hours after inoculation by serial dilution technique to obtain 10-15 concentrations and different formulations. Shelf life of P. fluorescens talc based carrier material compared to liquid formulations.